*Check out more photos for "Wonder-ful" right here!
Katey Sagal guests this episode as Artie's mom! Plus, the glee club tackles Stevie Wonder.
Read up on the guide for season 4 episode 21 of Glee, "Wonder-ful" right here:
THURSDAY, MAY 2
--"GLEE" - (9:00-10:00 PM ET/PT)
LIFE IS STEVIE WONDER-FUL ON AN ALL-NEW "GLEE" THURSDAY, MAY 2 ON FOX
Katey Sagal ("Sons of Anarchy") Guest-Stars, Plus Kate Hudson ("Nine") Returns
- The members of New Directions take on the greatest hits of music icon Stevie Wonder.
- Meanwhile, Artie receives news that could affect his future and his mom (guest star Sagal).
- In New York, Rachel prepares for her "Funny Girl" callback.
- Guest Cast: Katey Sagal as Nancy Abrams; Kate Hudson as Cassandra July; Jacob Artist as Jake Puckerman; Melissa Benoist as Marley Rose; Becca Tobin as Kitty Wilde; Alex Newell as Wade Adams; and Blake Jenner as Ryder Lynn; Lauren Potter as Becky Jackson; Mike O'Malley as Burt Hummel; and Romy Rosemont as Carole Hudson-Hummel.